Zhang Yang@dimlight1998ChinaFollowAboutCurrentTsinghua University BadgesProblem SolvingDays of JSDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencedimlight1998 has not updated employment details yet.Educationdimlight1998 has not updated education details yet.